Abstract:Researchers and managers pay great interest in the combined use of Geographic Information System(GIS)and Multi\|variable analysis.In this research,ring\|necked pheasants‘ nesting habitat was modelled based on Mahalanobis distance by using GIS.In 1997 and 1998,fifty\|one nests of wild ring\|necked pheasants were discovered and orientated in Gansu,China.Distances from nests to 14 habitats‘edges,measured by GIS,were used as habitat characteristic variables.Terrain factors of elevation,slope and aspect were cal...